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One round of a circular park having radius 21 m is the same as that of a square park. What is the length of the side of the square park?
What is the simple interest (in Rs) on a principal of Rs. 1800 at the rate of 8% per annum for 3 years?
In a class out of 90 students, 60% are girls and the rest of boys. If the average marks of girls are 62 and the average marks of boys are 70, then find the average of all the students in the class.
A train 130 m long crosses a 110 m long bridge in 7.5 seconds. What is the speed of the train in km/h?
What will be the highest four-digit number which when divided by 3, 7, and 21 leaves the remainder 2?
If the price of a Pen is reduced by 30 Percent, it enables the customer to buy 5 more pens for Rs. 140. Find the reduced rate of Pen.
One single discount which is equivalent to 20%, 10% and 5% is given by:
If 40% of a number is less than its 60% by 30, then the 20% of that number is:
20 - 2[25% of (15 × 8 ÷ 6 + 12)] = ______
Namitha gives a 20% discount on all things in her shop and yet makes a profit of 12%. What is the cost price of an item with marked price of ₹280?
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